THE CORRELATION OF THE TREADMILL EXERCISE TEST WITH CARDIAC HEMODYNAMICS IN PATIENTS WITH PREVEIOUS MYOCARDIAL INFARCTION

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The correlation between the treadmill exercise test results and the hemodynamic data of 152 patients with previous myocardial infraction were investigated. The patients were classified into 4 groups as follows: h1 left ventricular end-diastolic pressure (LVEDP) ⩽ 12 mmHg and cardiac index (Cl) ⩾3.0 L/min/m^2 ; H2 LVEDP > 12 mmHg and Cl ⩾ 3.0 L/min/m^2 ; H3 LVEDP ⩽ 12 mmHg and Cl < 3.0 L/min/m^2 ; and H4 LVEDP > 12 mmHg and Cl < 3.0 L/min/m^2. the duration of the exercise was significantly shortened for group H4 than group h1 (p < 0.01). The maximal ST segment elevation (mSTe) was significantly increased for group h3 and group H4, versus group H1 (p < 0.01) versus group 1. the incidence of exercise-induced premature ventricular contractions (PVCs) was significantly increased in group H3 and group H4, versus group H1 (p < 0.059. There were no significant differences in the maximal heart rate, double product, and ST segment depression among the 4 groups. Our data indicate that the groups with impaired left ventricular functions tend to decrease the duration of the exercise and to increase ST segment elevation and PVC frequencies during exercise.
社団法人日本循環器学会の論文
1989-04-20